Australia just witnessed the most epic showdown in reality TV history.

After Izzy caught Simon texting his ex-girlfriend, she told the other contestants she’s “done” with their relationship.

When Simon said he needed some time to himself after “today”, she told him what she really thought.

“This is it. This is it. This is the last time you will look me in the face. Because this is the last time I will have you lie to me.”

When Simon replied, “What did I lie to you about?”, Izzy retorts, “Everything. F*CKING EVERYTHING.”

“The way that you feel about me, about [your ex] Meghan. About every time you stood in my face and you told me that you loved me and that you respected me.

“You’re so full of shit. Look me in the eye and tell me any of those things meant anything.”

Simon then said those things meant “lots of things”.

“They meant nothing and you know it,” Izzy screamed in his face. “I loved you with everything that I have.”

In response to this Simon shrugged and said, “That’s wonderful, I’m going”.

Izzy walked in the opposite direction and yelled out, “That’s wonderful? That’s all I get?”

As Simon ran away in the distance she screamed, “F*ck you, f*ck you”.

It was probably the most satisfying five minutes of TV you’ll watch all year.

While a crying Izzy was comforted by the other contestants, Simon continued walking, explaining to the camera that he’s showing no emotion because he’s not feeling anything, and he’s glad that it’s ended.

Simon then returned to the villa and they packed his things together. Izzy made one last parting comment to Simon, “My mum was right about you, you are the devil”.

In case you missed it, Izzy and Simon have been the most controversial couple this season.

Izzy’s mum, Bobbi, thinks Simon is a “narcissistic sociopath” and “a soulless demon”, and she was determined not to let her daughter end up with him.

Before the reality show was filmed, Simon cheated on Izzy.

“The betrayal I felt was to the bone,” Izzy said in week one.

“I cut him out of my life. Simon had all these problems with alcohol. He was off the rails.”

Shortly after Simon got sober, the couple got back together and were engaged to enter an “open marriage” – where they would engage in physical relationships with people outside their marriage, given they had spoken about it with each other first.

The engagement came much to Bobbi’s dismay.

“How can you trust somebody who put you where you were?” Bobbi asked Izzy.

“Do you remember what you were like? Do you remember not be able to leave the bed, let alone the bedroom?

“He broke you. That’s a dangerous personality.”

Last week – we saw Simon take a lie detector test, where he was probed about his drinking and his infidelity.

And the results of the test were… Simon had been drinking, despite claiming he had quit.

He was also asked if he’d “been with a woman Izzy didn’t know about”, to which he answered: “yes”.

Torn between her mother and her partner, Izzy made an emotional admission during a therapy session with Bobbi and her best friend Amanda: “How can being in love with someone and wanting to spend the rest of my life with them feel this wrong?”.

On Monday’s episode, Simon spent his “dream date” with Bobbi. She asked him whether he loved her daughter. He responded “With every fibre in me, I do love your daughter”.